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-rw-r--r--src/northbridge/intel/haswell/Kconfig1
-rw-r--r--src/northbridge/intel/haswell/Makefile.inc2
-rw-r--r--src/northbridge/intel/haswell/haswell.h2
-rw-r--r--src/northbridge/intel/haswell/mrccache.c247
4 files changed, 1 insertions, 251 deletions
diff --git a/src/northbridge/intel/haswell/Kconfig b/src/northbridge/intel/haswell/Kconfig
index 69550ffcfd..5e592337f2 100644
--- a/src/northbridge/intel/haswell/Kconfig
+++ b/src/northbridge/intel/haswell/Kconfig
@@ -18,6 +18,7 @@ config NORTHBRIDGE_INTEL_HASWELL
select CPU_INTEL_HASWELL
select MMCONF_SUPPORT
select MMCONF_SUPPORT_DEFAULT
+ select NORTHBRIDGE_INTEL_COMMON_MRC_CACHE
select INTEL_DDI
select INTEL_DP
select INTEL_GMA_ACPI
diff --git a/src/northbridge/intel/haswell/Makefile.inc b/src/northbridge/intel/haswell/Makefile.inc
index 1dd7f76712..f198b7c027 100644
--- a/src/northbridge/intel/haswell/Makefile.inc
+++ b/src/northbridge/intel/haswell/Makefile.inc
@@ -20,12 +20,10 @@ ramstage-y += northbridge.c
ramstage-y += gma.c
ramstage-y += acpi.c
-ramstage-y += mrccache.c
ramstage-y += minihd.c
romstage-y += ram_calc.c
romstage-y += raminit.c
-romstage-y += mrccache.c
romstage-y += early_init.c
romstage-y += report_platform.c
romstage-y += ../../../arch/x86/walkcbfs.S
diff --git a/src/northbridge/intel/haswell/haswell.h b/src/northbridge/intel/haswell/haswell.h
index c560428a06..6e587f8640 100644
--- a/src/northbridge/intel/haswell/haswell.h
+++ b/src/northbridge/intel/haswell/haswell.h
@@ -213,8 +213,6 @@ void dump_mem(unsigned start, unsigned end);
void report_platform_info(void);
#endif /* !__SMM__ */
-struct mrc_data_container;
-struct mrc_data_container *find_current_mrc_cache(void);
#if !defined(__PRE_RAM__)
#include "gma.h"
int init_igd_opregion(igd_opregion_t *igd_opregion);
diff --git a/src/northbridge/intel/haswell/mrccache.c b/src/northbridge/intel/haswell/mrccache.c
deleted file mode 100644
index 09bf73fcc7..0000000000
--- a/src/northbridge/intel/haswell/mrccache.c
+++ /dev/null
@@ -1,247 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2012 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <stdint.h>
-#include <string.h>
-#include <bootstate.h>
-#include <console/console.h>
-#include <cbfs.h>
-#include <fmap.h>
-#include <ip_checksum.h>
-#include <northbridge/intel/common/mrc_cache.h>
-#include <device/device.h>
-#include <cbmem.h>
-#include "pei_data.h"
-#include "haswell.h"
-#include <spi-generic.h>
-#include <spi_flash.h>
-
-/* convert a pointer to flash area into the offset inside the flash */
-static inline u32 to_flash_offset(struct spi_flash *flash, void *p) {
- return ((u32)p + flash->size);
-}
-
-static struct mrc_data_container *next_mrc_block(
- struct mrc_data_container *mrc_cache)
-{
- /* MRC data blocks are aligned within the region */
- u32 mrc_size = sizeof(*mrc_cache) + mrc_cache->mrc_data_size;
- if (mrc_size & (MRC_DATA_ALIGN - 1UL)) {
- mrc_size &= ~(MRC_DATA_ALIGN - 1UL);
- mrc_size += MRC_DATA_ALIGN;
- }
-
- u8 *region_ptr = (u8*)mrc_cache;
- region_ptr += mrc_size;
- return (struct mrc_data_container *)region_ptr;
-}
-
-static int is_mrc_cache(struct mrc_data_container *mrc_cache)
-{
- return (!!mrc_cache) && (mrc_cache->mrc_signature == MRC_DATA_SIGNATURE);
-}
-
-/* Right now, the offsets for the MRC cache area are hard-coded in the
- * northbridge Kconfig if CONFIG_CHROMEOS is not set. In order to make
- * this more flexible, there are two of options:
- * - Have each mainboard Kconfig supply a hard-coded offset
- * - Use CBFS
- */
-static u32 get_mrc_cache_region(struct mrc_data_container **mrc_region_ptr)
-{
- size_t region_size = 0;
- *mrc_region_ptr = NULL;
-
- if (IS_ENABLED(CONFIG_CHROMEOS)) {
- struct region_device rdev;
-
- if (fmap_locate_area_as_rdev("RW_MRC_CACHE", &rdev) == 0) {
- region_size = region_device_sz(&rdev);
- *mrc_region_ptr = rdev_mmap_full(&rdev);
- }
- } else {
- *mrc_region_ptr = cbfs_boot_map_with_leak("mrc.cache",
- CBFS_TYPE_MRC_CACHE,
- &region_size);
- }
- return region_size;
-}
-
-/*
- * Find the largest index block in the MRC cache. Return NULL if non is
- * found.
- */
-static struct mrc_data_container *find_current_mrc_cache_local
- (struct mrc_data_container *mrc_cache, u32 region_size)
-{
- u32 region_end;
- u32 entry_id = 0;
- struct mrc_data_container *mrc_next = mrc_cache;
-
- region_end = (u32) mrc_cache + region_size;
-
- /* Search for the last filled entry in the region */
- while (is_mrc_cache(mrc_next)) {
- entry_id++;
- mrc_cache = mrc_next;
- mrc_next = next_mrc_block(mrc_next);
- if ((u32)mrc_next >= region_end) {
- /* Stay in the MRC data region */
- break;
- }
- }
-
- if (entry_id == 0) {
- printk(BIOS_ERR, "%s: No valid MRC cache found.\n", __func__);
- return NULL;
- }
-
- /* Verify checksum */
- if (mrc_cache->mrc_checksum !=
- compute_ip_checksum(mrc_cache->mrc_data,
- mrc_cache->mrc_data_size)) {
- printk(BIOS_ERR, "%s: MRC cache checksum mismatch\n", __func__);
- return NULL;
- }
-
- printk(BIOS_DEBUG, "%s: picked entry %u from cache block\n", __func__,
- entry_id - 1);
-
- return mrc_cache;
-}
-
-/* SPI code needs malloc/free.
- * Also unknown if writing flash from XIP-flash code is a good idea
- */
-
-/* find the first empty block in the MRC cache area.
- * If there's none, return NULL.
- *
- * @mrc_cache_base - base address of the MRC cache area
- * @mrc_cache - current entry (for which we need to find next)
- * @region_size - total size of the MRC cache area
- */
-static struct mrc_data_container *find_next_mrc_cache
- (struct mrc_data_container *mrc_cache_base,
- struct mrc_data_container *mrc_cache,
- u32 region_size)
-{
- u32 region_end = (u32) mrc_cache_base + region_size;
-
- mrc_cache = next_mrc_block(mrc_cache);
- if ((u32)mrc_cache >= region_end) {
- /* Crossed the boundary */
- mrc_cache = NULL;
- printk(BIOS_DEBUG, "%s: no available entries found\n",
- __func__);
- } else {
- printk(BIOS_DEBUG,
- "%s: picked next entry from cache block at %p\n",
- __func__, mrc_cache);
- }
-
- return mrc_cache;
-}
-
-static void update_mrc_cache(void *unused)
-{
- printk(BIOS_DEBUG, "Updating MRC cache data.\n");
- struct mrc_data_container *current = cbmem_find(CBMEM_ID_MRCDATA);
- struct mrc_data_container *cache, *cache_base;
- u32 cache_size;
-
- if (!current) {
- printk(BIOS_ERR, "No MRC cache in cbmem. Can't update flash.\n");
- return;
- }
- if (current->mrc_data_size == -1) {
- printk(BIOS_ERR, "MRC cache data in cbmem invalid.\n");
- return;
- }
-
- cache_size = get_mrc_cache_region(&cache_base);
- if (cache_base == NULL) {
- printk(BIOS_ERR, "%s: could not find MRC cache area\n",
- __func__);
- return;
- }
-
- /*
- * we need to:
- */
- // 0. compare MRC data to last mrc-cache block (exit if same)
- cache = find_current_mrc_cache_local(cache_base, cache_size);
-
- if (cache && (cache->mrc_data_size == current->mrc_data_size) &&
- (memcmp(cache, current, cache->mrc_data_size) == 0)) {
- printk(BIOS_DEBUG,
- "MRC data in flash is up to date. No update.\n");
- return;
- }
-
- // 1. use spi_flash_probe() to find the flash, then
- spi_init();
- struct spi_flash *flash = spi_flash_probe(0, 0);
- if (!flash) {
- printk(BIOS_DEBUG, "Could not find SPI device\n");
- return;
- }
-
- // 2. look up the first unused block
- if (cache)
- cache = find_next_mrc_cache(cache_base, cache, cache_size);
-
- /*
- * 3. if no such place exists, erase entire mrc-cache range & use
- * block 0. First time around the erase is not needed, but this is a
- * small overhead for simpler code.
- */
- if (!cache) {
- printk(BIOS_DEBUG,
- "Need to erase the MRC cache region of %d bytes at %p\n",
- cache_size, cache_base);
-
- flash->erase(flash, to_flash_offset(flash, cache_base), cache_size);
-
- /* we will start at the beginning again */
- cache = cache_base;
- }
- // 4. write mrc data with flash->write()
- printk(BIOS_DEBUG, "Finally: write MRC cache update to flash at %p\n",
- cache);
- flash->write(flash, to_flash_offset(flash, cache),
- current->mrc_data_size + sizeof(*current), current);
-}
-
-BOOT_STATE_INIT_ENTRY(BS_WRITE_TABLES, BS_ON_ENTRY, update_mrc_cache, NULL);
-
-struct mrc_data_container *find_current_mrc_cache(void)
-{
- struct mrc_data_container *cache_base;
- u32 cache_size;
-
- cache_size = get_mrc_cache_region(&cache_base);
- if (cache_base == NULL) {
- printk(BIOS_ERR, "%s: could not find MRC cache area\n",
- __func__);
- return NULL;
- }
-
- /*
- * we need to:
- */
- // 0. compare MRC data to last mrc-cache block (exit if same)
- return find_current_mrc_cache_local(cache_base, cache_size);
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-15 23:21:28 +0000